Overview
The vulnerability, coded as CVE-2025-4050, is a critical one affecting Google Chrome users. It is associated with an Out of Bounds Memory Access in DevTools in Google Chrome versions prior to 136.0.7103.59. This flaw exposes systems to potentially severe exploits that could result in significant system compromise and data leakage. The vulnerability poses a considerable risk due to the high user base of Google Chrome, making it a potential target for remote attackers seeking to exploit such security loopholes.
Vulnerability Summary
CVE ID: CVE-2025-4050
Severity: Medium (8.8 CVSS Severity Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: Required
Impact: Heap corruption leading to potential system compromise or data leakage
Affected Products
Product | Affected Versions
Google Chrome | Versions prior to 136.0.7103.59
How the Exploit Works
The vulnerability is a result of a flaw in the memory handling process within the DevTools component of Google Chrome. The flaw allows an out-of-bounds memory access that could lead to heap corruption. A remote attacker could exploit this vulnerability by creating a specially crafted HTML page and convincing a user to engage in specific UI gestures on this page. Once the user interacts with the malicious page, the attacker can execute arbitrary code, potentially leading to a full system compromise or data leakage.
Conceptual Example Code
A conceptual example of how this vulnerability might be exploited could look something like this:
<!DOCTYPE html>
<html>
<head>
<title>Malicious Page</title>
<script>
// Using JavaScript to create a memory overflow
var arr = new Array(1);
for (let i = 0; i <= 1e9; i++) {
arr[i] = i;
}
</script>
</head>
<body>
<!-- Malicious UI element that causes the user to interact in a specific way -->
<button onclick="arr[1e9 + 1] = 'malicious code';">Click me!</button>
</body>
</html>In the above conceptual example, the JavaScript code attempts to create an array with a size greater than what the system can handle, causing a memory overflow. The UI element, when interacted with, attempts to access an index out of the array’s bounds, potentially leading to heap corruption and the execution of malicious code.
